import router from "./router";
import { store } from "@/store";
import getPageTitle from "@/utils/page";

let asyncRouterFlag = 0;

const whiteList = ["Login", "Init", "v3"];
router.beforeEach(async (to, from, next) => {
  const token = store.getters["user/token"];

  // 在白名单中的判断情况
  // 修改网页标签名称
  document.title = getPageTitle(to.meta.title);
  if (whiteList.indexOf(to.name) > -1) {
    if (token) {
      next({ name: store.getters["user/userInfo"].authority.defaultRouter });
    } else {
      next();
    }
  } else {
    // 不在白名单中并且已经登陆的时候
    if (token) {
      // 添加flag防止多次获取动态路由和栈溢出
      if (
        !asyncRouterFlag &&
        store.getters["router/asyncRouters"].length === 0
      ) {
        asyncRouterFlag++;
        await store.dispatch("router/SetAsyncRouter");
        const asyncRouters = store.getters["router/asyncRouters"];
        router.addRoutes(asyncRouters);
        next({ ...to, replace: true });
      } else {
        if (to.matched.length) {
          next();
        } else {
          next({ path: "/layout/404" });
        }
      }
    }
    // 不在白名单中并且未登陆的时候
    if (!token) {
      next({
        name: "Login",
        query: {
          redirect: document.location.hash,
        },
      });
    }
  }
});
